Flush tank valve



Feb. 6, 1940. F, sUlTT FLUSH TANK VALVE Filed Feb. 7, 1959 2Sheets-Sheet l Feb. 6, 1940. F, sun-T l 2,189,479

FLUSH TANK VALVE Filed Feb. 7, 1939 2 Sheets-Sheet 2 Inventor SJ. Suf/Bgm 069mm.,

A orneys Patented Feb. e, 1940 y 2,189,479

`fig; flush tank and providing a, dash-pot valvecontending tubular guideI1 which rises from thei` I5 l .FLUsiiTANKlvALvE p y Aiirea ny suite,Durham, N. o. [Appiioation February i, 1939, seriaiNo. 255,141

' f aoiaims.Y (o1. 4-s2) jy The presentI invention relatesgto-valvesfor`ing itsside'edges cooperating yvvithvthe/valve flush tanks and has forits primaryobject to proseat 9. i i l r i .I vide an .automatic gravityactuated valve` for v Rising from the `valve is the valvev stemlpositively closing the discharge opening inthe which has aworking fit inthevertically ex- Mtrolling mechanism adapted .to retard closing top I8secured in the upper portion ofthe valve movement of the valve. cage 8by the set screws I9. The upper-end of A further object of the presentinvention isto the valve stem I6 is recessed as shown at 20 and.rprovide a dash-pot controlling mechanismr for a ywithin which isinserted the flanged rlower end i0 valve of the above character in whicha cylinder A2I of a rod 22, the rod being secured in position\:;10

rprovided having a confined fluidtherein yand Withinthe receSS by athreaded D111g.,23 U0 PrO- f within Whicha valvecl'piston is arranged tore- 4vide forthe free rotary movement between the i ytard theclosingmovement of the valve and-by Valve yStein andthe rOd- The P11-1g 23SSeCured employing the use of a conned fi'uidwin the cylagainstaccidental displacement by a set-screw 24.

1 5 inder ii ispossibie to use a non-freezingiiquid A cylinder 25 kiseast integrally with the guideilv to insurehproper controlling-fmovementofthe e |7 by means 0f the integrally: f0rIned 1l1gS 26, valve atl alltemperatures. v the cylinder extendingverticallyin parallelree A stillfurther object is to provide a device of lation with respect totheguide, and. is closed this character of simple and practical construcetits 10Wer end end'DrOVded With a threaded tion, which is emoieni andreliabie'in performcap 21 at its upper end. A piston 28 has a 2o ance,relatively inexpensive to manufacture and Working fit in the Cylinder.the DSiOn `being PIO- j install in operative position and otherwise wellvided With passages 29 eXtendng therethrough. adapted for the purposesfor which the same is said passages being controlled by a ball checkintended. l n valve 30 adapted to seat upwardly against the otherobjects and advantages reside in the devalve Seat 3l in the lowerportion ofthe piston 25 tails of construction and operation as morefully 130 c108e COmInllnCaOn therelhrough by a) dOWnhereinafterdescribed and claimed, reference Ward mOVement 0f the DSOD- The Valve 30iS being had to the accompanying drawings formretained againstaccidental displacement by a ing part hereof, wherein'like numeralsreferto rUd 32` extending transversely aCrOSS the 10We'r` 30 like partsthroughout, and in Whiehv y f end of one of the passages in the piston.Arod 30 Figure 1 is a side elevational view with parts 33 eXtendSupwardly rOnl the DSiOn thrOugh an broken away and shown in section.opening in the cap 21 and is connected to the Figure 2 is a top planView, j y rod 22 by a cross head 34, the end o f the cross Figure 3 is atransverse sectional view taken head beine split as'at 35 and secured inClampsubstantially on a line 3 3 of Figure 1 ing relationV against therod 22 at one end and 35 Figure 4 is a Vertical sectional view throughthe 'I'Od 33 at the other end' by means 0f Seil the dash-pot, and,screws 36, by means of which it will be apparent Figure 5 ris afragmentary vertical sectional that the CTOSS head may be adjustablysecured view of the swivel connection for the valve stem. m posmon' 1 1i 40 Referring now to the drawingsl in detail, the To the 05.5 head '1SSeured .a bracket 31 by 40 numeral 5 designates th-e bottom of a ushtank means of Whlch the.' mimlpulatmg lever of the having the dischargepipe 6 threaded thereflush. tanzama'y be adqustably secured m thethrough and secured in position by the lock nut openmgs A by-pass 39connects the upper'and lower 1. The upper end of the pipe 6 1s formedinto a l valve Cage 8 having the tapered valve Seat 9 at. portions ofthe cylinder 25, the lower end of the 45 b ass bein formed with l thebottom portion thereof, the walls of the cage Wxlh a neele valve 4|copasgetaledglgl above the valve seat beingprovided with vertivalvebeing threaded through the Wan of the cy1 cally extending Openings 0 finder and provided at its outer end with a ma- Theoverflow pipe I Irises vertically from the nipulating head 42, connection I2 whichcommunicates with the clis- In the operation of the device a, suitablefluid 50 charge pipe below the valve seat 9. isy placed in the cylinder25 and upon the open- Cooperating with the valve seat is the valve I3 ling of the valve I3 the piston 28 will simultahaving the conicalcomposition valve disk I4 seneously be moved upwardly, the passages 29in the. cured in position by the nut I5, the disk I4 havpistonpermitting unrestricted upward movement 55 of the piston. It will beapparent, however, that the closing movement of the valve I3 will beretarded as the .downward movement of. the piston 28 will cause the ballcheck valve 30 to seat against the valve seat 3| thereby closingcommunication through the piston, the needle valve 4I regulating thepassage of the liquid from the lower portion of the cylinder 25 throughthe by-pass 39 into the upper portion thereof, whereby to regulate theclosingmovement ci the valve I3.

It will be understood that the valve I3 is weighted sufficiently tocause a gravitating closing movement thereof.

It is believed the details of construction and manner of operation ofthe device will be readily understood from the foregoing without furtherdetailed explanation.

Having thus described the invention,V what I claim is:

'1. A valve for ilush tanks comprising a. gravity actuated valve memberadapted to control discharge of water from the tank and a dash-potmechanism provided with a confined fluid and operatively connected tothe valve for retarding movement of the valve.

2. A valve for ush tanks comprising a gravity actuated valve memberadapted to control discharge of water from the tank and a dash-potmechanism operatively connected to the valve for retarding movement ofthe valve, said dashpot mechanism comprising a cylinder, a confinedfluid therein and a valved piston working in the cylinder.

3. A valvefor flushtanks comprising a gravity actuated rvalve memberadapted to control discharge of water from the tank and a dash-potmechanism operatively connected to the valve for retarding movement ofthe valve, said dash-pot mechanism comprising a cylinder having aconfined iiuid therein, a by-pass connecting the upper and lower ends ofthe cylinder and a valved piston working in the cylinder adapted forfree upward movement and retarded in its downward movement to delayclosing of the valve member.

4. A valve for flush tanks comprising a, gravity actuated valve member,a stem rising therefrom, a cylinder having a piston working therein, astem rising from the piston, a cross head connecting the valve stem andpiston stem for uni- 'form movement, a by-pass connecting the upper andlower ends of the cylinder, a conned fluid in the cylinder, a passagethrough the piston and a valve in the piston adapted to close thepassage upon a downward movement of the piston and vproviding freecommunication between the upper and lower portions of the cylinder uponupward movement thereof.

il 5. Alvalve for flush tanks comprising a gravity actuated valvemember, a stem rising therefrom, a cylinder having a piston workingtherein, a stem rising from the piston, a cross head connecting thevalve stem and piston stem for uniform movement, a by-pass connectingthe upper and lower ends of the cylinder, a confined uld in thecylinder, a passage through the piston and Va valve in the pistonadapted to close the pas- "sag'e upon a downward movement of the piston.and providing free communication between the upper and lower portionsof the cylinder upon upward movement thereof and a manually adjustablevalve controlling the by-pass.

FRED L. SUI'I'I.

